Yarn let-off connection



J. W. GILES YARN LET-OFF CONNECTION Apr. 24, 1923.

Filed April 10, 1922 Patented Apr. 24, 1923.

ream.

JoHiv w. GILES, or sense, sonnet penetrate. r

Law-e r sere a e To all whom it may concern:

Be it known that I, Jornv .GrLns a citizen of the United States, residing at Greer, in the county of Greenville and State 5 of South Carolina, have invented certain new and useful Improvements inYarn Let- Off Connections; and I do hereby declare the following to be a full, clear, andexact description of-the invention, suohas will enable others skilled in the art to which it appertains to make and-use the same.

This invention relates to an apparatus for the yarn let-off mechanism of a loom.

The mainv object is to provide a novel connection between thelet-ofl' rod and an operating rock shaft therefor which will avoid the use of a cotter pin or key usually employed to overcome liability of frequent breakage of the connection and consequent falling off or displacement of the drive rod, causing the warp to tighten and throw out the shuttle and break ends in considerable numbers.

Another object is to provide a construchas a substantially T-shaped head and the other part has an enlarged slot to coact therewith and of a shape to enable rein forcement of the parts where the greatest wear and strain occurs thereon.

With the above and additional objects such as will hereinafter appear, in view, the invention has been embodied in one preferred form as illustrated in accompanying drawings:

In said drawings Figure 1is an elevation illustrating the improvements operatively embodied in a loom;

Figure 2 is a perspective view of the improved connection, and Figure 3 is a perspective view of the parts of said connection in detached relation.

Like reference characters designate like or similar parts in the difi'erent views. 1

In the drawings a loom is partially shown of which the operating rod for the let-off mechanism is'shown at A to be driven as is common practice from a rock shaft at B. Supplanting the usual lugs and cotter pin connections that cause undue wear and is liable to separate through breakage of the cotter pins, is the, following construction.

A connecting arm is provided at 10 which tion in which one of the connected parts ,is adapted to be connected to a crank arm erably enlarged so that the arm 10 may be secured at different adjustments relatively to the arm 11. In addition, arm 10 may have one or more ribs at 1 1 to overlap the sides of the arm 11, reinforce its connection therewith and prevent pivotal movement of a arm 10 from thebolt l2. 1

Extending laterally from the arm 10 and preferably integral therewith, is a T-shaped connectinghead 14. The shank of this head is designated 15 and its lateral lugs or head proper are designated 16. I

a The rod A is enlarged at one end as at 17 and therethrough is provided with a slot of L-shape at 18 which accordingly provides an enlargement for said slot at 19 and thickens and reinforces the end 17 as at a portion 20.

The arm'lO has the head 14 first passed through the enlargement 19 of the slot 18 so that its shank 15 will enter the narrower portion of the slot 18 and the lugs 16 will and accordingly the thickening of said portion in combination with the slot 19 compensates for the wear and strain incidental to actual use. In addition, the lugs 16 are substantial and will not readily wear away, or become loosened or broken as is the case with cotter pins and their equivalent.

In order to facilitate the movement of the rod A on the shank 15 as a fulcrum, the latter mav be rounded off or curved as at 21.

As merely one practical embodiment has been illustrated and described, it is to be understood that changes in the details may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention v 1. In combination with a let-off rod having a slot therethrough. an arm to drive said rod having a head provided with a shank and with a lug. said slot being of a size to permit passage. of the lug therethrough in i one position to facilitate attachment and de tachment, said lug adapted to normally prevent detachment of the. rod and arm, and

of the rod and arm and said iod due to the shape of and at said slot hzwing'a portion to accommodate Wear imposed by operation of the shank.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN W. GILES.

' Witnesses: T. G. GIBEATH, BEN P. DILLARD. 

